Which 16 channel Multiplexer / Demultiplexer

Discussion in 'Embedded Systems and Microcontrollers' started by mkbutan, Dec 12, 2012.

  1. mkbutan

    Thread Starter Senior Member

    Sep 30, 2008
    I would like to know Which 16 channel Multiplexer / Demultiplexer IC should i use
    for the CKT. in attachment.
    or any other alternative for this CKT.
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    The upper 16 to 4 device is a priority encoder, however I don't know of any above the 74HC148 which is 8:3 in size, so some glue logic will be needed to splice 2 devices together.

    The lower 4 to 16 device is any multiplexer, which in the CMOS CD4067 comes as a multiplexer/demultiplexer and you choose the direction. It leaves the unselected outputs floating so your circuit needs to accept that.
    mkbutan likes this.